Rebreathing from a closed bag results in arterial hypercapnia (raised partial pressure of carbon dioxide), which...

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Rebreathing from a closed bag results in arterial hypercapnia(raised partial pressure of carbon dioxide), which stimulatesrespiration. Briefly explain this neural mechanism.

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Normal arterial pco2 is 40 mmHg Hypercapnia occurs due torebreathing in a bag An increase in arterial pco2 causes a promptincrease in the pulmonary ventilation resulting in carbon dioxidewashout and a near restoration of arterial pco2 to normal    See Answer
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